The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 26, 2006
Filed:
Sep. 14, 2001
Kouichi Tachikawa, Yamanashi, JP;
Hiroyuki Yunoki, Yamanashi, JP;
Yutaka Kikuchi, Saitama, JP;
Terumo Kabushiki Kaisha, Tokyo, JP;
Kokoku Intech Co., Ltd., Tokyo, JP;
Abstract
A gasket is capable of providing an excellent slidabiity and holding its sealability without applying lubricant and a gasket that can prevent a resin film from being peeled off of a gasket body and prevent the generation of a molding defect such as pinholes. The gasket can be installed slidably in a outer tube of a syringe, including a gasket body and a resin film formed of a material lower in coefficient of friction than a material of the gasket body, which covers at least an outer periphery of the gasket body, in which when a surface roughness of the resin film on the outer tube side is defined as Raand a surface roughness of the resin film on the gasket body side is defined as Ra, a relationship of 1.5 Ra≦Rais satisfied.